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Solved
ipV6 disconnecting on Orbi RBR850
(NOT RBK53 model in drop down, why is RBR850 not there?) I have RBR850, firmware V4.6.7.13_2.1.9, and a CM1200 modem connected to Comcast's 1.2/40 service. All is working well, speeds, modem numb...
OK, it's been two weeks, and my IPv6 has been working perfectly all that time, no more disconnects! I am going to mark this thread as solved, with the update of firmware to 4.6.8.5 being the thing that fixed it. If others are still having trouble I suggest starting a new thread, as there may be multiple issues. Thanks everyone for your help!
I did the power reset on the modem and router yesterday afternoon, Last night I encountered a strange problem. On 2 different Windows 11 laptops, things got really slow. On my MacBook Pro there were no issues. I couldn't figure out the problem, but to get to the DuckDuckGo home page in Edge took about 30 seconds, usually it's instantaneous. Quicken took about 3-4 minutes to bring up the first screen! I ran speed test, it took about a minute to connect, but then speeds were perfect (~ 900Mbps down, 40 Mbps up - so a very fast ethernet). One of the Windows is Ethernet connected the other is WiFi.
So I tried -
Windows restart
Windows power cycle
Power cycle modem
Power cycle RBR850
Power cycle Switch
Clear all cache etc. in Edge
I probably did some other stuff I can't remember.
It was still very bad today, almost unusable. So I thought about the ipV6 issues, and I disabled ipV6 on the router only. Boom - lightning fast again! So there was some sort of serious issue going on here. I am done with ipV6 for awhile, luckily I can afford to - maybe it will work consistently by the time its truly needed.
donawalt wrote:I did the power reset on the modem and router yesterday afternoon, Last night I encountered a strange problem. On 2 different Windows 11 laptops, things got really slow. On my MacBook Pro there were no issues. I couldn't figure out the problem, but to get to the DuckDuckGo home page in Edge took about 30 seconds, usually it's instantaneous. Quicken took about 3-4 minutes to bring up the first screen! I ran speed test, it took about a minute to connect, but then speeds were perfect (~ 900Mbps down, 40 Mbps up - so a very fast ethernet). One of the Windows is Ethernet connected the other is WiFi.
So I tried -
Windows restart
Windows power cycle
Power cycle modem
Power cycle RBR850
Power cycle Switch
Clear all cache etc. in Edge
I probably did some other stuff I can't remember.
It was still very bad today, almost unusable. So I thought about the ipV6 issues, and I disabled ipV6 on the router only. Boom - lightning fast again! So there was some sort of serious issue going on here. I am done with ipV6 for awhile, luckily I can afford to - maybe it will work consistently by the time its truly needed.
That is very interesting! After IPv6 is lost on my 752 I have to toggle IPv6 and use Auto Detect and then sett DHCP. The issue is that Auto Detect takes a very long time and the router web UI gets unresponsive for a long time. It sometime takes up to a minute before things go back to normal. Normal being either having a IPv6 address or 6to4 tunnel or having to power cycle everything.. There's clearly issues with IPv6 although I have not had slow network performance like you had.
That's the first time I saw that performance hit, and on multiple Windows laptops.
- So then how many Orbi devices you think this affects?
The weekly IPv6 drop just happened. It's mostly happening on Saturday or Sunday. Must be when Comcast renews IP or something like that. Anyhow, I have shortened the procedure to get back up:
1. Disable IPv6
2. Auto Detect IPv6
3. Wait at least 5 minutes.
4. Set IPv6 back to DHCP and I get a new IP lasting another 5 - 7 days.
When will we have an update? This is not hard to reproduce and happens like clockwork!
